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velikii [3]
3 years ago
12

Using that formula

Mathematics
1 answer:
hichkok12 [17]3 years ago
8 0

Answer:

50 is 20% of 250

Step-by-step explanation:

\frac{50}{y} = \frac{20}{100}

now you can cross multiply and you get 20y=50*100

divide both sides by 20


y=250

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Which is a simplified form of the expression 4(2z – 1) – 5z?
horsena [70]

Answer:

The answer is A

Step-by-step explanation:

3 0
4 years ago
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Sarah pays a 20% deposit for a new TV and then an extra $96. What’s the total cost?
mixer [17]

A deposit (in this case) is a portion of the TV paid in advance - 20% of the total cost. That means that the 96$ makes up the remaining 80% of the total cost, which I'll represent as <em>x</em>. From here, we can set up an equation to find the total cost x, since we have a relation to form it on - <em>the fact that 80% of x is equal to 96$.</em>

0.8x = 96

\frac{0.8x}{0.8} = \frac{96}{0.8}

x = 120  

The total cost of the TV is 120 dollars.

4 0
3 years ago
Janet is three years older than her sister Julie Janet's brother is 8 years older than their sister Julie the sum of all their a
seropon [69]

Answer:

Julie is 14.67, Janet 17.67 and Brother 22.66

Step-by-step explanation:

Let Julie age be x

Janet: x+3

Brother: x+8

x+x+3+x+8=55

3x+11=55

3x=44

x=14.7

4 0
2 years ago
A triangular frame has sides that measure 15'-7",20'-4" and 26'-2". What is the total length of three sides?
meriva

Answer:

The total length of three sides is 62'-1"

Step-by-step explanation:

We know that 1 foot = 12 inches and 1' = 12''

Part 1)

We also know that side 1=15'-7", side 2=20'-4", side 3=26'-2"

To find the total length of three sides sum the three sides

So the total length=side 1+side 2 +side 3

Now we substitute

Total length=15'-7"+20'-4"+26'-2"

Total length=(15'+20'+26')+(7"+4"+2")

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Remember that 12"=1'

13"=12"+1"=1'+1"

Substitute again

Total length=(61')+(1'+1")

Total length=(62')+(1")---------> 62'-1"

<u>Therefore the answer is the total length of three sides is 62'-1"</u>

4 0
3 years ago
The measures of the angles of a triangle are in the ratio 6: 3: 7. Determine the measure, in
erik [133]

Answer:

Step-by-step explanation:

If the ratio of triangle = 6:3:7

Total ratio = 6+3+7 = 16

The sum of angle in a triangle is 180°

1st angle= 6/16 × 180 = 6 × 11.25

= 67.5°

2nd angle= 3/16 × 180 = 3 × 11.25

= 33.75°

3rd angle= 7/16 × 180 = 7 × 11.25

= 78.75°

Largest is 78.75° and smallest is 33.75°

5 0
3 years ago
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